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Azure Speech TTS: Unnatural stress on Spanish words ending in "-tón" across multiple neural voices

Hello Microsoft Speech Team, While testing Azure AI Speech for a Spanish language-learning application, I noticed a pronunciation issue affecting several Spanish words ending in "-tón", particularly when they are spoken alone or at the end of a…

Azure Speech in Foundry Tools
asked 2026-11-03T14:53:49.79+00:00
Diego Tu 0 Reputation points
commented 2026-11-03T15:59:53.9366667+00:00
Hemant Bharadwaj 90 Reputation points Microsoft Employee
1 answer

Azure Speech TTS: Incorrect Spanish pronunciation of "jersey" in es-ES-ElviraNeural

Hello, I am a Spanish language teacher, and I use Azure Speech in a small educational web application designed to help students practice Spanish pronunciation. I have identified a pronunciation issue with the Spanish (Spain) neural voice…

Azure Speech in Foundry Tools
asked 2026-10-30T14:08:47.0466667+00:00
Diego Tu 0 Reputation points
commented 2026-11-01T15:18:32.2+00:00
Diego Tu 0 Reputation points
1 answer

Azure Video Translation: 337–361 seconds in NotStarted despite fast HTTP 201 — request engineering investigation

We are requesting review by a Microsoft engineer and escalation to the Azure AI Speech / Video Translation product team for a recurring delay after translation creation is accepted and before the iteration changes from NotStarted to Running. Observed…

Azure Speech in Foundry Tools
asked 2026-10-18T16:39:07.26+00:00
Adrian Tudor 0 Reputation points
answered 2026-10-29T17:24:20.2733333+00:00
Jerald Felix 19,080 Reputation points Volunteer Moderator
0 answers

Azure LLM Speech returns empty transcripts with custom prompts and drops sentences in multilingual transcription

We are experiencing two separate issues with Azure Speech Fast Transcription in enhanced mode. Configuration Region: East US API version: 2025-10-15 Enhanced mode: enabled Task: transcribe Languages: English and Spanish Issue 1: Previously working…

Azure Speech in Foundry Tools
asked 2026-10-28T14:41:00.5733333+00:00
Ronak Jain 0 Reputation points
edited the question 2026-10-28T14:46:46.55+00:00
Ronak Jain 0 Reputation points
2 answers

Can pre-generated MAI-Voice-2.1 (preview) audio be published as static files on a live website?

Hello, I would like to get a written answer on whether audio generated with MAI-Voice-2.1 while it is in public preview may be published on the site(language course in my case), and on one related question about content credentials. How we use Azure AI…

Azure Speech in Foundry Tools
asked 2026-10-03T04:42:06.8633333+00:00
Alexey Mayer 0 Reputation points
edited an answer 2026-10-28T14:16:03.66+00:00
Sai Kiran Mudavath 345 Reputation points Microsoft External Staff Moderator
1 answer

Commercial Use of Azure for Students $100 Credit for YouTube Monetization

Hello Microsoft Azure Support Team, I am a university student eligible for the Azure for Students program, which includes $100 in free Azure credits. I am planning to use Azure AI Speech (Text-to-Speech) to generate voiceovers for original educational…

Azure Speech in Foundry Tools
asked 2026-10-24T07:40:17.9133333+00:00
Ahmad MOSADE 0 Reputation points
commented 2026-10-28T13:19:36.2833333+00:00
Balantrapu Sreevishnu 90 Reputation points Microsoft External Staff
1 answer

Azure FedRAMP Moderate and CJIS Coverage for AI Transcription Services — Clarification Needed

Problem description I am inquiring about the current compliance status of specific Azure AI services, namely MAI-Transcribe-2 with enhancedMode and Microsoft-Decision-1, regarding FedRAMP Moderate authorization and CJIS Security Policy coverage. I need…

Azure Speech in Foundry Tools
asked 2026-10-23T04:21:25.8466667+00:00
Santhosh-1553 0 Reputation points
answered 2026-10-28T08:42:54.1533333+00:00
Alex Burlachenko 26,680 Reputation points MVP Volunteer Moderator
1 answer

Voice Live API with gpt-realtime -datazone models: HDS certification scope, EU-only processing and data retention

We run a health-related application hosted in Azure France Central under an HDS (Hébergeur de Données de Santé) contract. We are evaluating the Voice Live API (Azure Speech in Foundry Tools) for real-time voice conversations in French, using a data zone…

Azure Speech in Foundry Tools
asked 2026-10-13T17:42:06.46+00:00
Sébastien Acacia 0 Reputation points
answered 2026-10-28T05:18:49.77+00:00
kagiyama yutaka 5,655 Reputation points
2 answers

Adrian photo avatar: White and Transparent background settings have no effect in Foundry Playground

Hello, We use the standard Adrian photo avatar (VASA-1) in Microsoft Foundry’s Text-to-Speech Avatar Playground, with an S0 resource in Sweden Central. We have tested: White background: The downloaded MP4 retains a grey/beige background around Adrian. …

Azure Speech in Foundry Tools
asked 2026-10-23T06:40:44.5466667+00:00
commented 2026-10-27T13:24:20.0466667+00:00
Shaik Haaris 5 Reputation points Microsoft External Staff
1 answer

Commercial use of uk-UA-OstapNeural via edge-tts for monetized YouTube videos

Hello Microsoft Support, I operate a Ukrainian educational YouTube channel called "Гіпотеза UA". I generate Ukrainian narration using the Microsoft neural voice "uk-UA-OstapNeural" through the open-source Python library…

Azure Speech in Foundry Tools
asked 2026-10-27T00:39:50.9933333+00:00
Nazar 0 Reputation points
answered 2026-10-27T00:46:19.9966667+00:00
Nazar 0 Reputation points
1 answer

Azure Speech Fast Transcription repeatedly returns HTTP 429 despite very low usage — UK South, S0

I'm developing a Python Flask application using Azure Speech Fast Transcription. Configuration: Azure Speech resource: S0 Standard Region: UK South API version: 2025-10-15 Transcription language: Albanian (sq-AL) Issue: Two separate transcription…

Azure Speech in Foundry Tools
asked 2026-10-26T20:33:16.95+00:00
Kiran Roberts 0 Reputation points
answered 2026-10-26T20:33:39.4+00:00

AI answer

1 answer

Previously clean Azure neural TTS now produces clicks/fizz across multiple voices and regions

I am experiencing a similar audio-quality regression to this report: https://learn.microsoft.com/en-us/answers/questions/6034940/intermittent-audio-artifacts-in-azure-speech-tts-o Azure neural voices that previously produced clean speech now consistently…

Azure Speech in Foundry Tools
asked 2026-10-25T19:39:38.8866667+00:00
V S 0 Reputation points
answered 2026-10-26T08:24:46.9+00:00
Alex Burlachenko 26,680 Reputation points MVP Volunteer Moderator
2 answers

Intermittent audio artifacts in Azure Speech TTS output across voices, formats, and regions

I use Azure Speech Studio at speech.microsoft.com to synthesize Czech speech. The problem started suddenly. One generation sounded clean. About 30 minutes later, I regenerated the same text with the same settings, and the new output had noticeable volume…

Azure Speech in Foundry Tools
asked 2026-10-12T20:17:20.24+00:00
Connor00712 :D 0 Reputation points
answered 2026-10-26T07:54:33.5166667+00:00
Alex Burlachenko 26,680 Reputation points MVP Volunteer Moderator
1 answer

Azure Speech SDK WebSocket Connection Fails on One Quest Headset but Works on Another (Same Build, Same Azure Resource)

Environment Unity application using Azure Speech-to-Text Azure Speech Region: centralus Azure Speech SDK: 1.44.0 Platform: Meta Quest (Android 14) Endpoint: wss://centralus.stt.speech.microsoft.com/stt/speech/universal/v2 Problem We've had a Unity…

Azure Speech in Foundry Tools
asked 2026-09-11T10:24:06.55+00:00
David Bain (GCE) 0 Reputation points
commented 2026-10-22T12:14:50.0933333+00:00
SRILAKSHMI C 19,830 Reputation points Microsoft External Staff Moderator
1 answer

Request: Belgian Dutch (nl-BE) support for MAI-Voice-2 and MAI-Voice-2-Flash

Azure Speech already recognises Belgian Dutch as a separate locale and currently provides "nl-BE-DenaNeural" and "nl-BE-ArnaudNeural". However, the new MAI generation is currently available for Dutch through "nl-NL"…

Azure Speech in Foundry Tools
asked 2026-08-04T09:13:59.8933333+00:00
Dirk Delbaere 1 Reputation point
commented 2026-10-22T11:57:32.3566667+00:00
SRILAKSHMI C 19,830 Reputation points Microsoft External Staff Moderator
1 answer

Clarification on Azure AI Speech F0 Tier: Rights to generate, save, and replay audio files locally for private non-commercial evaluation

Hello, I have an Azure for Students subscription with an Azure AI Speech F0 (free) resource. I would like to generate three short audio sentences using the prebuilt neural voice fr-BE-CharlineNeural, solely for private, local software development and…

Azure Speech in Foundry Tools
asked 2026-10-20T11:54:56.95+00:00
Roman Sechaud 0 Reputation points
answered 2026-10-20T19:43:20.8066667+00:00
Divyesh Govaerdhanan 11,895 Reputation points MVP Volunteer Moderator
1 answer

Voice Live, Canada East: playground offers only "Bring my Foundry Model", and where is speech recognition processed?

I have an AIServices (Foundry) resource in canadaeast. Voice Live works through the API, but not in the Foundry playground. Playground bug The Foundry (new) Voice Live playground offers only "Bring my Foundry Model" and lists no prebuilt…

Azure Speech in Foundry Tools
asked 2026-10-19T16:13:12.99+00:00
Priyan Arora 0 Reputation points
commented 2026-10-19T16:40:22.0533333+00:00
Priyan Arora 0 Reputation points
1 answer

Video Translation REST API: first iteration intermittently waits ~6 minutes in NotStarted, while Speech Studio on the same resource starts immediately

Hello, we use Azure AI Speech – Video Translation (REST API 2026-03-01) to dub audio and video files in our web application. Setup Speech resource in West Europe (S0) Two Azure App Services (Linux, B1, Always On enabled): an API and a background…

Azure Speech in Foundry Tools
asked 2026-10-14T11:37:07.4033333+00:00
Silvian Basno 0 Reputation points
edited the question 2026-10-16T08:41:41.24+00:00
Silvian Basno 0 Reputation points
0 answers

Fast transcription with diarization times out (HTTP 408 InternalCommunicationFailed) in Italy North since Oct 13, 2026

Since 2026-10-13 around 08:00 UTC, every fast transcription request with diarization enabled fails in the Italy North region. The service waits about 60 seconds and then returns HTTP 408 with the body…

Azure Speech in Foundry Tools
asked 2026-10-15T06:57:50.11+00:00
Valerio Cassano 0 Reputation points
1 answer

Azure Speech Pronunciation Assessment (ja-JP): Missing scores and 6–7s latency under concurrent requests

Hello Azure Speech community, We are investigating intermittent high latency and missing pronunciation assessment results when using Azure AI Speech. Environment Service: Azure AI Speech, Standard S0, Japan East SDK: Microsoft Cognitive Services…

Azure Speech in Foundry Tools
asked 2026-10-14T11:53:52.8333333+00:00
JP-Speech-Dev 0 Reputation points
commented 2026-10-14T12:48:02.9733333+00:00
JP-Speech-Dev 0 Reputation points